2025 Compare Climate & Weather:
Surprise, AZ vs Fort Collins, CO

Highlights

On average, there are 237 sunny days per year in Fort Collins. Surprise averages 301 sunny days per year. The US average is 205 sunny days.

Fort Collins, Colorado gets 15.6 inches of rain, on average, per year. Surprise, Arizona gets 9.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Fort Collins averages 48.1 inches of snow per year. Surprise averages 0.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Fort Collins, Colorado
Summer High: the July high is around 87 degrees
Winter Low: the January low is 15.3
Rain: averages 15.6 inches of rain a year
Snow: averages 48.1 inches of snow a year

Surprise, Arizona
Summer High: the July high is around 105.5 degrees
Winter Low: the January low is 42.2
Rain: averages 9.2 inches of rain a year
Snow: averages 0.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Fort Collins is 7.2 (10=best), which means it is more comfortable than most places in Colorado.

The annual BestPlaces Comfort Index for Surprise is 7.3 (10=best), which means it is less comfortable than most places in Arizona.

Today's Weather - Surprise, AZ

56°F

Today's Weather - Fort Collins, CO

50°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Surprise / Fort Collins

July is the hottest month for Surprise with an average high temperature of 105.5°, which ranks it as warmer than most places in Arizona. In Surprise, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Surprise are March, November and April.

July is the hottest month for Fort Collins with an average high temperature of 87.0°, which ranks it as about average compared to other places in Colorado. In Fort Collins, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Fort Collins are September, June and August.

December has the coldest nighttime temperatures for Surprise with an average of 41.1°. This is warmer than most places in Arizona.

December has the coldest nighttime temperatures for Fort Collins with an average of 14.9°. This is about average compared to other places in Colorado.

In Surprise, there are 165.1 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Fort Collins, there are 23.6 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Surprise, there are 4.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.

In Fort Collins, there are 163.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Colorado.

In Surprise, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Arizona.

In Fort Collins, there are 7.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Colorado.

February is the wettest month in Surprise with 1.3 inches of rain, and the driest month is May with 0.1 inches. The wettest season is Spring with 37% of yearly precipitation and 15% occurs in Summer, which is the driest season. The annual rainfall of 9.2 inches in Surprise means that it is drier than most places in Arizona.


May is the wettest month in Fort Collins with 2.4 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Summer with 39% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 15.6 inches in Fort Collins means that it is drier than most places in Colorado.

February is the rainiest month in Surprise with 3.9 days of rain, and June is the driest month with only 0.4 rainy days. There are 32.0 rainy days annually in Surprise, which is less rainy than most places in Arizona. The rainiest season is Spring when it rains 36% of the time and the driest is Summer with only a 19% chance of a rainy day.

May is the rainiest month in Fort Collins with 11.2 days of rain, and December is the driest month with only 4.5 rainy days. There are 89.8 rainy days annually in Fort Collins, which is rainier than most places in Colorado. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 0.1 inches in Surprise means that it is less snowy than most places in Arizona.

An annual snowfall of 48.1 inches in Fort Collins means that it is about average compared to other places in Colorado.

December is the snowiest month in Surprise with 0.0 inches of snow, and no months of the year have significant snowfall.

March is the snowiest month in Fort Collins with 10.9 inches of snow, and 9 months of the year have significant snowfall.